NGK LFR7AIX 2309 Iridium IX Spark Plug for 06-14 WRX / 04+ STi

NGK LFR7AIX spark plugs for the 2006-2014 WRX and 2004+ Subaru STi models. These are one step colder than stock with a heat range of 7. Plugs are sold individually. Price is for one plug, please adjust quantity as needed.

Vehicle Fitment:
2006-2014 Subaru WRX
2004-2018 Subaru STi
(EJ25)
Note: These plus are 'One Step Colder'

NGK Specs:
Part Number: LFR7AIX
Stock Number: 2309
Heat Range: 7
Plug Gap: .032 
Thread Size: 14mm

Description:
NGK Iridium IX Spark Plugs are designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti fouling.

• Fine wire center electrode ensures high durability and a consistently stable spark
• Iridium alloy has an extremely high melting point, perfect for today's high-tech, high performance engines
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Corrugated ribs prevent flashover
• Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
• Copper core aids in heat removal
• Triple seals prevent leakage

Shell:
Thread Size: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor Value: 5K Ohm
Reach: 26.5mm (1.04')
Hex Size: 5/8' (16mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .031' (0.8mm)

Center Electrode:
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Projected

Ground Electrode:
Material: Nickel
Type: Standard
Shape: Taper Cut
Quantity: 1

Torque Specs:
Cast Iron: 18-25.3 lb. ft.
Aluminum: 18-21.6 lb. ft.